Our Architectural-Design Services in Allentown-Bethlehem-Easton
S|D|A Architects, P.C. is a full-service architectural-design firm with a builder’s background.
Each design comprehensively incorporates not only function, but the intricate details relating to how the space inspires you. We integrate windows and skylights to allow for calming natural light in all the right places. Interiors are intuitively navigable for ease of use. Curated textures and color palettes project your brand identity inside and out.
We bring the entire structure together through intentional architectural massing that presents a practical building as well as a memorable sensory experience, crafted by and for human beings.
Our long experience in construction infuses our designs with all the technical details to turn your vision into reality. Site logistics, floor loading, MEP (mechanical, electrical, and plumbing) engineering, utilities, and zoning – all of it ensures the safety and longevity of your structure.

Our building designs throughout the Lehigh Valley integrate all of the following services:
- Pre-Design & Programming
- Feasibility Studies
- Preliminary Cost Modeling
- Site Evaluation & Analysis
- Strategic Planning & Development
- Facilities Master Planning
- Existing Conditions Documentation
- Integrated Constructability Reviews
- Design & Planning
- Space Planning
- 3D Computer Modeling & Rendering
- 2D Plan & Elevation Rendering
- Real-World Prototyping
- Historic Restoration & Renovation
- Interior Design Selections
- Graphic Design, Signage, & Wall Artwork
- Build-Ready Construction Documents
- Specifications (specs)
- MEP Coordination
- Schedules
- Construction Administration
- Construction Inspection
- Requests for Information (RFIs)
- Financial Institution Progress Inspections
Building Design for the Lehigh Valley
S|D|A Architects, P.C. brings decades of architectural-design expertise to the Lehigh Valley, including in:
Our designs respect the past that gave rise to the Allentown-Bethlehem-Easton region while always looking toward the greatness that is possible in the future.
From these former steel and heavy-industrial towns comes a new era of business growth for the Lehigh Valley. At S|D|A Architects, P.C., we are proud to have contributed to this revitalization over our long career, and it’s our honor to continue that tradition.
Our Principal,
Scott Douglas Allen
Education
BArch 1997
Architecture
University of Kansas
Lawrence, KS
AET 1990
Architectural Drafting & Design
Johnson College
Scranton, PA
Affiliations
NCARB
ICC
AIA
AIA-PA
NE-AIA-PA
Construction-Informed Architect Serving Pennsylvania’s Lehigh Valley
S|D|A Architects, P.C. designs structures for the entire Lehigh Valley, including for organizations in Allentown, Bethlehem, Easton, Fogelsville, Center Valley, Trexlertown, and everywhere in between. Our hands-on construction experience and practical approach to architectural design has made us a trusted partner to businesses, colleges and universities, municipalities, and more since 2005.



